Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Katherine M Williams, LCSW

Individual provider Clinical Social Worker · NPI 1083007702

Katherine M Williams, LCSW is a Clinical Social Worker in Arlington, Virginia. Qualified in 2016, 10 years ago. Works from 2 locations. Licensed in California and Virginia.

Years since qualifying
10
Licensed in
CA, VA
In the registry since
2015
Specialties on file
2
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1005 N Glebe Rd Ste 525
Arlington, VA 22201-5792
Phone: (888) 354-3654
Fax: (253) 254-5911
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 101 Jose Figueres Ave Ste 50, San Jose, CA 95116-2068 — (408) 254-6828

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 0904020154 (VA)
Clinical Social Worker Taxonomy 1041C0700X · Licence 121581 (CA)

Record details

NPI number1083007702
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedMarch 5, 2015
Last updated in NPPESMay 12, 2026
Certification dateMay 12, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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